Circular saw



FIG. 1 is a front elevational view of the design;

FIG. 2 is a rear elevational view of the circular saw in FIG. 1;

FIG. 3 is a right side elevational view of the circular saw in FIG. 1;

FIG. 4 is a left side elevational view of the circular saw in FIG. 1;

FIG. 5 is a bottom plan view of the circular saw in FIG. 1;

FIG. 6 is a top plan view of the circular saw in FIG. 1; and

FIG. 7 is a view similar to FIG. 8 except the handle is lifted to formwith the base frame an acute angle.

FIG. 8 is a front-top-left perspective view of the design of FIG. 1where the blade and the base frame form a substantially 90° angle; and,

FIG. 9 is a view similar to FIG. 8, except the handle and the blade tiltto the front so that the blade forms with the base frame an angle otherthan 90°.

The ornamental design for a circular saw, as shown and described.